#403FC7#403FC7

#403FC7 is a mid, highly saturated blue. Relative luminance 0.088; OKLCH L 46.2% C 0.204 H 275.2°. Best body text is #FFFFFF at 7.63:1 contrast (WCAG AA passes).

Color values

HEX	#403FC7
RGB	rgb(64, 63, 199)
HSL	hsl(240, 55%, 51%)
HSV	hsv(240, 68%, 78%)
CMYK	cmyk(67.8%, 68.3%, 0%, 22%)
CIE-LAB	lab(35.53, 43.17, -70.40)
CIE-LCH	lch(35.53, 82.58, 301.52°)
OKLab	oklab(46.23% 0.0185 -0.2033)
OKLCH	oklch(46.23% 0.204 275.2)
XYZ	xyz(14.1973, 8.7672, 54.9658)
Luminance	0.0877 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#403FC7 #C6C73F

analogous

#3F82C7 #403FC7 #843FC7

triadic

#403FC7 #C7403F #3FC740

tetradic

#403FC7 #C73F82 #C6C73F #3FC784

square

#403FC7 #C73F82 #C6C73F #3FC784

split-complementary

#403FC7 #C7843F #82C73F

monochromatic

#20206C #2E2D9B #403FC7 #6F6ED5 #9E9EE3

Accessibility & contrast

On white

7.63

#403FC7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.75

#403FC7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403FC7

7.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403FC7	#FFFFFF	#000000	##FFFFFF
##403FC7	1.00	7.63	2.75	7.63
#FFFFFF	7.63	1.00	21.00	1.00
#000000	2.75	21.00	1.00	21.00
##FFFFFF	7.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005ACB

Deuteranopia (green-blind)

#004DC4

Tritanopia (blue-blind)

#00647E

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #403fc7;
/* rgb */ color: rgb(64, 63, 199);
/* oklch */ color: oklch(46.2% 0.204 275.2);

Tailwind

colors: {
  custom: {
    50: '#8675d9',
    500: '#403fc7',
    950: '#000000',
  },
}

SCSS

$custom: #403fc7;
$custom-light: #8675d9;
$custom-dark: #000000;

JSON

{
  "hex": "#403fc7",
  "rgb": {
    "r": 64,
    "g": 63,
    "b": 199
  },
  "hsl": {
    "h": 240.441,
    "s": 54.839,
    "l": 51.373
  },
  "oklch": {
    "l": 0.46229,
    "c": 0.20419,
    "h": 275.2
  },
  "luminance": 0.08769
}

Semantic roles & 50–950 ramp

primary

#403FC7

secondary

#CECF93

accent

#DE4ADD

background

#F9F7FD

surface

#F1EDFB

border

#CBC8D4

text

#0D0815

muted

#7E7B83

Preview Lab

Preview with #403FC7

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →